Finding the Fourth Proportional to 1,065.17, 1,468.59 and 715.25

Step by Step Solution

1. Step 1: Write the proportion equation
   1,065.17 : 1,468.59 = 715.25 : x
2. Step 2: Convert to fraction form
   1,065.17/1,468.59 = 715.25/x
3. Step 3: Cross multiply
   1,065.17x = 1,468.59 × 715.25
4. Step 4: Simplify right side
   1,065.17x = 1,050,409.00
5. Step 5: Solve for x
   x = 1,050,409.00/1,065.17
6. Step 6: Final answer
   x = 986.14